JS backend: add debug info for CallInfo

js/js.translator/src/org/jetbrains/k2js/translate/reference/CallInfo.kt

@@ -30,6 +30,7 @@ import org.jetbrains.jet.lang.resolve.scopes.receivers.ExpressionReceiver
 import org.jetbrains.jet.lang.descriptors.PropertyDescriptor
 import org.jetbrains.jet.lang.descriptors.VariableDescriptor
 import com.google.dart.compiler.backend.js.ast.JsName
+import org.jetbrains.jet.lang.diagnostics.DiagnosticUtils
 
 
 trait CallInfo {
@@ -38,6 +39,12 @@ trait CallInfo {
 
     val thisObject: JsExpression?
     val receiverObject: JsExpression?
+
+    fun toString(): String {
+        val location = DiagnosticUtils.atLocation(context.bindingContext(), callableDescriptor)
+        val name = callableDescriptor.getName().asString()
+        return "callableDescriptor: $name at $location; thisObject: $thisObject; receiverObject: $receiverObject"
+    }
 }
 
 // if value == null, it is get access

js/js.translator/src/org/jetbrains/k2js/translate/reference/CallTranslator.kt

@@ -31,6 +31,7 @@ import org.jetbrains.k2js.translate.utils.JsAstUtils
 import org.jetbrains.k2js.translate.context.Namer
 import org.jetbrains.k2js.translate.utils.ErrorReportingUtils
 import org.jetbrains.k2js.translate.utils.AnnotationsUtils
+import org.jetbrains.jet.lang.diagnostics.DiagnosticUtils
 
 
 val functionCallCases: CallCaseDispatcher<FunctionCallCase, FunctionCallInfo> = createFunctionCases()
@@ -68,7 +69,7 @@ fun ResolvedCall<out CallableDescriptor>.expectedReceivers(): Boolean {
 
 private fun TranslationContext.buildCall(resolvedCall: ResolvedCall<out FunctionDescriptor>, explicitReceivers: ExplicitReceivers): JsExpression {
     if (resolvedCall is VariableAsFunctionResolvedCall) {
-        assert(explicitReceivers.receiverObject == null, "VariableAsFunctionResolvedCall must have one receiver") // TODO: add debug info
+        assert(explicitReceivers.receiverObject == null, "VariableAsFunctionResolvedCall must have one receiver")
         val variableCall = resolvedCall.getVariableCall()
         if (variableCall.expectedReceivers()) {
             val newReceiver = buildGet(variableCall, explicitReceivers.receiverOrThisObject)
@@ -90,27 +91,24 @@ private fun TranslationContext.buildCall(resolvedCall: ResolvedCall<out Function
 trait CallCase<I : CallInfo> {
     val callInfo: I
 
-    protected fun unsupported(message: String = "") : Exception {
-        val stackTrace = Thread.currentThread().getStackTrace()
-        val methodName = stackTrace.get(stackTrace.lastIndex - 1).getMethodName()
-        val caseName = javaClass.getName()
-        return UnsupportedOperationException("this case unsopported: $message [$methodName; $caseName; $callInfo]")
+    protected fun unsupported(message: String = "") : Nothing {
+        throw UnsupportedOperationException("this case unsopported. $callInfo")
     }
 
     protected fun I.noReceivers(): JsExpression {
-        throw unsupported()
+        unsupported()
     }
 
     protected fun I.thisObject(): JsExpression {
-        throw unsupported()
+        unsupported()
     }
 
     protected fun I.receiverArgument(): JsExpression {
-        throw unsupported()
+        unsupported()
     }
 
     protected fun I.bothReceivers(): JsExpression {
-        throw unsupported()
+        unsupported()
     }
 
     final fun translate(): JsExpression {